Hello!
let's make the following solution:
we eliminate the parentheses and change the signs
we eliminate the opposite numbers

so:



ps: the answer is correct, the question was poorly worked out with the wrong feedback.
__________________________
I Hope this helps, greetings ... DexteR! =)
Hey You!
12/40 = Candidate A.
18/40 = Candidate B.
12 + 18 = 30
40 - 30 = 10
10/40 = Those who didn't vote.
ANSWER:
12 ÷ 40 = .3 (30%) So 30% voted for Candidate A.
18 ÷ 40 = .45 (45%) So 45% voted for Candidate B.
10 ÷ 40 = .25 (25%) So 25% didn't vote at all.
Those Are Your Answers! ^^^
X=-2,+1,-1 ;........................,,,,,,,,,,,
Answer:
12 times 2 since it doubles every time I'm not that sure so if I am not correct my bads